Wire brush



Patented May 24, 192 7.

UNITED STATES 1,629,481] PATENTIQFFILCE.

WILLIAM w. navrnson, or s'rnmormm), OHIO, AssIoNor. "r THE anaemia:

TRIMMER COMPANY, 0F SPRINGFIELD, OHIO, A CORPORATION OF OHIO.

WIRE BRUSH.

ae ncatmi fi1ed. May 4, 19-25. sen-aim. Q1134.

with brushes of this general ciara-ci'ier because they were not adapted to work properly within openings or of ifliflerent' sizes such as are encountered in motors of different makes, and also because thewircs were not readily renewable and would not withstand the severe use given them in such kinds of work, and did not operate satisfactorily on parts within openings such as the inside edges of valve seats or similar parts.

sists preferably of twisting the wires of the brush into a tuft of wires, which is specially designed in a manner like that described in Letters Patent No. 1393,670, the tuft of wires being securely attached to a two part support which is combined with an enclosing member that is adapted in normal position to insure the tuft of wire being held securely attached to said support, and

permitting ready renewal of the wire.

Referring to the drawings:

Fig. 1 is a view in side elevation of the wire brush tool.

Fig. 2 is a central longitudinal section.

Fig. 3 is a similar view to Fig. 1 the parts being given a quarter turn, showing parts in section.

Fig. '4: is a transverse sectional view on the lines 4-4 of Fig. 1.

Like letters of reference indicate like parts throughout the different views.

Referring to the drawings, 1 indicates a cylindrical support having a projecting stem 2 and the stem 2 is arranged to be connected with the chuck C of any suitable power machine for imparting a rotary movementto the brush. The cylindrical support 1 is formed with a shoulder 3 at its upper end and also a groove 1 (see Fig. 4). On the opposite side of this cylindrical support land at its other end is a tapered surface marked 5., The elongated holding member 6 which is preferably of metal that Heretofore diliiculty has been experienced- In a general way this improvement con.

ca be sprung into place is'adapted to fit within the groove -it and the upper end of theelongated member 6 has a bent end which is adapted to be snapped into engage ment with the shoulder 3. The lower end of the elongated member marked 8 is hookshaped and extends againstthe I inclined surface 5 soth-at by pressing the elongated I member Gupwardly the hooked end 8 will slide along the inclined surface and the end 7' can then be snapped in to engagement 7 with the shoulder 3.. As indicated in Figs.

2 and 3 the tuft of wire 9 is twisted'into such form that the twisted ends 10 of the wires can be threaded upon the hooked end 8 of the elongated member '6, aiid- ,by disconnecting the elongated menrber '6- from the cylindrical member 1 the twisted wires can be removed and new wires inserted. This is especially desirable where the tool is given such severe use that/by reason of heat or friction the free ends of the wires become welded or matted together so as to destroy the efficiency of the brush, requiring the wires to be renewed frequently.

7 -There is also employed a sleeve member 11 (Fig. 1) and this member is adapted to enclose the lower part of the cylindrical member 1 and the elongated member 6. thereby insuring that the parts will be held snapped together in proper position. This sleeve 11 is secured to the cylindrical support 1 by the set screw 12 (Fig. 1) which set screw passes through a slotted opening 13 formed in the central part of the sleeve and projects within a corresponding opening in the cylindrical support 1; the walls of the opening being provided with a series of countersunk seats 14L for the head of the set screws to prevent slippage of the sleeve.

As shown in Fig. 1 this sleeve is adjustably mounted by reason of the fact that there are a plurality of openings formed in the sleeve so that the set screw 12 can be re- 7 the elongated support until the sleeve is moved sufiiciently to expose the hooked end 8 of the elongated member. Furthermore, by moving the sleeve 11 in its relation to the two part support 16, the proper adjustment can be made to render the tool suitable for different openings. in the head of a motor. If the opening is small, the Wires must be more compactly arranged and therefore, the sleeve 11 is slid to its lowermost position, while if the opening a large one the sleeve is slid to its upper position, thereby allowing the Wires to fit more satisfactorily within a large opening.

Having thus described my invention, I claim:

1 In a device of the character described. the combination of a cylindrical supporting member, said supporting member being provided at one end with an inclined surface and also PI'OXlClPtl with an intermediate shoulder, a rod-like holding member of metal having one end formed for engage ment with said shoulder and the other end provided with a hook-shaped portion to receive tufts of wire, the free end of said hookshaped portion being engageable with said inclined surface, and a sleeve member slidably mounted upon said supporting member and embracing said holding member and extending beyond the inclined end ofsaid sup,- porting member to embrace a portion of the tufts of wire.

2. In a device of the character described,

the combination of a cylindrical supporting member, said supporting member being pro vided on one side of one end thereof with an inclined surface and on the opposite side with a longitudinally extending groove, a shoulder being formed in. said member at the upper end of the groove, a rod-like holding member of metal. having one end formed for engagement with said shoulder and the other end provided with an open I hookshaped portion to receive tufts of wire, the free end of said hook-shaped portion being engageable with said inclined surface, and a sleeve member slida'bly mounted upon said supporting member and embracing said holding men ber.

In testimony whereof, I have hereunto set my hand this 30th day of April, 1925.

WILLIAM w. DAVIDSON. 

